Bdubs said:

The start of calmag deficiency. Yellowing at the bottom, mid and top. Skipping green foliage as it goes up. Yellowing, drying, crisping lower leaves is Nitrogen deficiency. You have progressive nutrient burn. Leaf tips curling up and drooping from too intense of light, too hot or lack of water.

I think she is nutrient locked causing all your issues.

I only see yellow or discoloring leaves on my flowering girls when I am flushing at the end. If it isn’t normal very slow discoloring and the leafs retain Turgor pressure, it is an issue signal and not normal fading.

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GreenBean28 said:

My leaves are turning yellow, but not from the bottom up - very uniform. This is my first grow and the plants were doing incredible until now. I'm using organic nutrients and my runoff test yesterday contained about 1000ppm - is that too much for runoff? I do have a bit of edge burn, but that was from about a month ago. There shouldn't be a problem with watering - I give the plants about 3 liters (5 gallon pots) every 3-5 days, or when the pots get light. My light is at about 950ppfd at the canopy - so that shouldn't be the problem either. About a week ago I accidentally let the temp get to about 95F for a few hours - that happened only once. There was about a week where the temps at night got to near 60F. Or...maybe this is normal. I do know that the leaves will begin to do this in the final stretch of flowering. Any help is much appreciated

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